When the earth's tectonic plates shift they move against each other causing an earthquake .
The atmosphere and Earth's interior are layered by density. Gravity pulls more strongly on denser materials so denser materials are at the center of things. Earth's core, at its center, is denser than its crust.
The answer is: guess. Estimate. Like guessing a forecast. Or such.
Answer:
Equinox
Twice during the year when Earth's poles are not pointed toward or away from the Sun. At this time, the direct rays of the sun strike the equator and both poles are at a 90 degree angle from the Sun. both hemispheres receive an equal amount of sunlight-12 hours each .
<span>There are lots of countries that do not have volcanoes, some of them include:
South Africa, Nigeria, Zimbabwe, Malawi, Djibouti, Somalia, Algeria, Morocco, Tunisia, Liberia, Denmark, Norway, Wales, Finland, Sweden, Ireland...
These countries, as well as the rest that lack volcanoes are all countries that are not lying above collision or submersion lines between the tectonic plates, nor have a hot spot beneath them, which is where the volcanoes appear. The best known is the 'Ring of Fire' in the Pacific, where most of the active volcanoes are.</span>
